World No. 1 Jeeno Thitikul has birdied her final three holes for a 6-under 66 and a two-stroke lead going into the final round of her home LPGA Thailand tournament.
Somi Lee is leading the CME Group Tour Championship in a race for the LPGA's season-ending $4 million payoff.
Haeran Ryu shot a 6-under 64 on Thursday to take the first-round lead in The Annika, with teen amateur Kai Trump last in the 108-player field after an 83 in her LPGA Tour debut.
Jeeno Thitikul made five birdies in a six-hole stretch midway through the first round on way to a 4-under 68 to lead the KPMG Women's PGA Championship.
Carlota Ciganda birdied the final two holes to win the Meijer LPGA Classic on Sunday for her first LPGA Tour victory in more than 8 1/2 years, while Lexi Thompson had two late bogeys to dash her bid to end a long drought of her own.
Defending champion Nelly Korda hit her stride late on a long and soft Liberty National, making three birdies over her last five holes for a 4-under 68 and a share of the lead Friday in the Mizuho Americas Open.